The volume of a nucleus is directly proportional to
(where A = mass number of the nucleus)

Options

A. A
B. `A^(3)`
C. `sqrt A`
D. `A^((1)/(3))`

Answer

A

Explanation

Radius of nucleus `R = R_(0) A^(1/3)` where `R_(0) = 1.2 xx 10^(-15)m`, and A is the mass number of nucleus.
`therefore` Volume of nucleus = `(4)/(3) pi R^(3) = ((4)/(3) pi R_(0)^(3))A`
`therefore` Volume is proportional to A.